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Persistent Photoconductivity Study on Ion Irradiated Carbon Films

Published online by Cambridge University Press:  21 February 2011

Somnath Bhattacharyya
Affiliation:
Department of Physics, Indian Institute of Science, Bangalore 560 012, India
D. Kanjilal
Affiliation:
Nuclear Science Centre, New Delhi 110 067, India
S.V. Subramanyam
Affiliation:
Department of Physics, Indian Institute of Science, Bangalore 560 012, India
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Abstract

Conducting carbon films are irradiated by high energy ion beam and persistent photoconductivity has been found from the irradiated samples. A complex distribution of traps created mostly by random displacement of carbon atoms by energetic ion beam from its polymeric matrix showed a persistent photoconductivity at low temperatures down to 50K. From the photo decay constants and the magnitude of photocurrent the density of traps and the corresponding activation energies have been calculated.

Type
Research Article
Copyright
Copyright © Materials Research Society 1996

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